The U.S. Navy has restricted operations of its three newest submarines pending inspections and repairs due to a quality control issue. The USS Minnesota (SSN-783), USS North Dakota (SSN-784) and USS John Warner (SSN-785), the later just commissioned last weekend, are being sidelined. The reason? General Dynamics Electric Boat (GDEB), the Navy’s primary shipbuilder, has determined that three steam pipe elbows required additional testing and repair due to unauthorized and undocumented weld repairs performed on the elbows.
Steam pipe elbows are instrumental in connecting a submarine’s nuclear reactors to its propulsion system. The elbows were constructed by Nuflo, a Jacksonville, Florida piping manufactory company.
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